CN101208220A - Fitting for a vehicle seat - Google Patents

Fitting for a vehicle seat Download PDF

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Publication number
CN101208220A
CN101208220A CNA2006800228327A CN200680022832A CN101208220A CN 101208220 A CN101208220 A CN 101208220A CN A2006800228327 A CNA2006800228327 A CN A2006800228327A CN 200680022832 A CN200680022832 A CN 200680022832A CN 101208220 A CN101208220 A CN 101208220A
Authority
CN
China
Prior art keywords
outer cover
accessory
wedge
fitting
cover spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006800228327A
Other languages
Chinese (zh)
Other versions
CN101208220B (en
Inventor
J·斯特默
R·梅瑟施米特
T·埃沃德
G·肖尔茨
A·诺比斯拉思
A·科马因达
H·芬纳
U·莱曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls Components GmbH and Co KG
Original Assignee
Keiper GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keiper GmbH and Co filed Critical Keiper GmbH and Co
Publication of CN101208220A publication Critical patent/CN101208220A/en
Application granted granted Critical
Publication of CN101208220B publication Critical patent/CN101208220B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • B60N2/2252—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • B60N2/2254—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms provided with braking systems

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Braking Arrangements (AREA)
  • Seats For Vehicles (AREA)

Abstract

A fitting ( 10 ) for a vehicle seat, more particularly for a motor vehicle seat, comprises a first fitting part ( 11 ), a second fitting part ( 12 ) that is in geared connection with the first fitting part ( 11 ), a driver ( 21 ) and wedge segments ( 27 a, 27 b), which at least partly define a cam that is rotatably mounted on the first fitting part ( 11 ) for driving a rolling movement of the first fitting part ( 11 ) and the second fitting part ( 12 ) against one another, and with a first sliding bearing ( 28 ) or rolling bearing, by way of which the wedge segments ( 27 a, 27 b) are mounted on the second fitting part ( 12 ) with a small amount of friction, at least a first ( 27 a) of the two wedge segments ( 27 a, 27 b) being mounted on the first fitting part ( 11 ) with a small amount of friction by way of a second sliding bearing ( 41 ) or rolling bearing.

Description

The fitting that is used for vehicle seat
The present invention relates to be used to have the fitting of vehicle seat of the preamble feature of claim 1.
With regard to this class fitting of learning from DE 44 36 101 A1, wedge-like portion directly is positioned at the annular of first accessory and gives prominence to.Static friction on steel and iron causes the safety of described fitting to reduce.When described fitting was driven, the low cliding friction ground of wedge-like portion moved along described annular is outstanding.
The present invention is based on the purpose of improving the above-mentioned accessory of mentioning.The accessory of the feature of this purpose by having claim 1 obtains according to the present invention.Further improve in the dependent claims and embody.
Because at least one of described two wedge-like portion has and lessly frictionally is installed on first accessory by second plain bearing or antifriction-bearing box, promptly, be installed in both sides by plain bearing or antifriction-bearing box, friction ratio wedge-like portion and the direct friction between the fitting part between the assembly of plain bearing (or antifriction-bearing box) and relative its slip are little, between the driver stage of accessory, promptly during adjusting motion, described loss is reduced, and has so increased the efficient of described accessory.For identical horsepower output, only need lower driving power.Freedom of movement and intensity are maintained.Compare with the steel of routine, described low friction is special surface treatment and/or processing.Compare the low friction of described antifriction-bearing box be the to roll friction of rolling of body with the cliding friction of ordinary steel.Plain bearing or antifriction-bearing box can provide in the mode of hybrid combining.Apparatus of the present invention in-to-in wedge-like portion can also be formed in each housing on dish, has two (decentralizing device) dish, is arranged by mutual axial offset subsequently.
Because than bearing more load forward, wedge-like portion is subjected to higher load to described backrest backward, therefore the friction level that takes place thereon is higher.The wedge-like portion of bearing top load preferably is installed in the part of both sides by plain bearing.Yet, another wedge-like portion or-similarly preferred-two wedge-like portion can also be installed in both sides by plain bearing.
Can be according to accessory of the present invention, and can be applicable in the vehicle seat by both operations of artificial or motor, preferably support or seat height for the gradient of regulating described backrest or the gradient or the legs and feet of described seat cushion.Described actuator can be single part or a plurality of part.
Because be installed in the no longer self-locking of wedge-like portion of both sides by plain bearing, therefore no longer self-locking of described accessory, be provided for the drg of described wedge-like portion at least one side of described vehicle seat, described drg keeps discharging between described wedge-like portion and the driver stage at rolling movement at the out-of-action state of described accessory.Considering that such accessory is safe and has good efficiency aspect the loss.Such drg need not provide at the opposite side of described vehicle seat.
Preferred drg is the outer cover spring brake, and it is provided at the high locking moment of outgoing side, but when moment of torsion reached drive side, its wheel torque of being diversion was rotated, and it is lower than described locking moment.Except the outer cover spring brake, can also provide to clamp the rolling flywheel.Described outer cover spring brake is preferably by leaning against the self-locking torque that produces it on the outer cover spring bushing, the outer cover spring bushing is fixing with respect to the rotation of second accessory, the preferred suitable protrusion by the outer cover spring bushing, for example positive joint between the internal tooth (providing) of the protruded arm and second accessory radially by procedure of processing.Inner it leans against on the inwall of outer cover spring bushing and radially inwardly outstanding outer cover spring arm is provided usually described outer cover spring brake preferred arrangements like this at the outer cover spring bushing.The latter is preferred to arrange like this, it is the cam of one or two wedge-like portion, lean against on the outer cover spring arm, act on the outer cover drg in the osed top mode, driving operating period, one or two cam rotation of actuator leans against on the outer cover spring arm, acts on the outer cover spring brake in the mode of opening.
Two embodiment among the present invention in conjunction with the accompanying drawings are described in detail, wherein:
Fig. 1 has shown the exploded drawings of first exemplary embodiment;
Fig. 2 has shown the partial view of first exemplary embodiment with actuator, and wherein actuator just partly shows;
Fig. 3 has shown the longitudinal diagram according to accessory of the present invention;
Fig. 4 has shown the scheme drawing of vehicle seat;
Fig. 5 has shown the exploded drawings of second exemplary embodiment; With
Fig. 6 has shown the partial view of second exemplary embodiment that does not have actuator.
The vehicle seat 1 that is used for power actuated vehicle has seat part 3 and backrest 4, and backrest 4 can be regulated on its gradient direction with respect to seat part 3.Pilot wheel 5, can manually actuate in order to regulate described gradient, rotate an axle drive shaft (not specifically describing) in a side of described vehicle seat 1, described axle drive shaft on even keel is arranged between the transitional region of seat part 3 and backrest 4, in the both sides of described vehicle seat 1, combine to rotate fixing mode with separately fitting 10.Backrest 4 is connected to seat part 3 by two fitting 10.
Fitting 10 is designed to gear piece, wherein first accessory 11 and second accessory 12 interconnect so that the gear adjustment by being designed to the eccentric planet gear and fixing, and a described eccentric planet gear with regard to two accessories 10 of vehicle seat 1 is a self-locking type at least.Two accessories 11 and 12 have basically aspect and are made up of steel.First accessory 11 is fixedly connected to and supports pilot wheel 5 and described axle drive shaft (in this case, the structure of backrest 4) structure, reason in view of the above, in the exemplary embodiment, first assembly 11 illustrates and therefore is arranged in the top of figure in the mode on the described backrest of being fixed on.Correspondingly, in described exemplary embodiment, second accessory 12 is fixed on the seat part, promptly be connected on the structure of seat part 3, and shown in the figure middle and lower part.As required, accessory 11 and 12 position can exchange.
In order to form described gear, the gear 16 with external tooth is embedded on second accessory 12, and the ring gear 17 with internal tooth is stamped on first accessory 11, and described tooth is meshing with each other.The tooth top circle diameter of the external tooth of gear 16 is than little at least one tooth depth of tooth root circle diameter of the internal tooth of ring gear 17.The corresponding number of teeth difference of gear 16 and ring gear 17 allows ring gear 17 to roll on gear 16.
In the side in the face of gear 16, first accessory 11 has integrally formed annular and protrudes 19, and annular protrusion 19 is concentric with the internal tooth of ring gear 17.Actuator 21 relies on the shell 22 in the annular outstanding 19 to install.Actuator 21 is made up of plastics, and its structure is determined the direction of use, and the heart has hole 23 therein, the male splines coupling and the axial rotation of hole 23 and axle drive shaft.In addition, actuator 21 has integrally formed drive part 25, and drive part 25 is arranged along the outstanding part of annular in sickle-shaped mode.Two wedge- like portion 27a and 27b are supported on the described annular outstanding 19 by their curved interior at least indirectly, and by their curved outside, support the one the first plain bearings 28, plain bearing 28 is pressed in second accessory 12 to rotate fixing mode.Friction between the inboard of the outside of described metal wedge- like portion 27a and 27b and sleeve-like first plain bearing 28 is significantly less than the direct friction between described wedge- like portion 27a and 27b and accessory 11 or 12.
Described drive part 25 is caught versatilely between the narrow limit of wedge- like portion 27a and 27b, and opposed facing wide the difference of wedge- like portion 27a and 27b supports the angle end of spring coil annularly simultaneously, and spring figure hereinafter refers to Ω (omega) spring 30.Ω spring 30 circumferencial direction with wedge- like portion 27a and 27b divide open and therefore at out-of-action state to remove movable mode locating joint accessory 10.Actuator 21 is axially fixed in by set collar 31 on the outside of first accessory 11, and set collar 31 is by on the card.In order to absorb described axial force, support plate separately (not explanation in the drawings) is welded on two accessories 11 and 12 in known manner and engages described another accessory under the situation that does not hinder described adjusting motion.
Drive part 25 and wedge- like portion 27a and 27b determine a decentralizing device, and it is pressed into gear 16 and ring gear 17 at the binding site of so determining each other along with the extension of the direction of eccentricity.Between by described rotating driveshaft driver stage, moment of torsion at first is delivered to actuator 21 subsequently to described decentralizing device, decentralizing device forms in such a manner and slides along first plain bearing 28, change the direction of eccentricity and therefore change the binding site of gear 16 in ring gear 17, it is described as accessory 11 and 12 swing rotational motion each other.
Because the weight of backrest 4, backrest 4 is usually located at the bevelled position, with the power that is applied to by the passenger on the backrest 4, situation with regard to described wedge- like portion 27a and 27b, can between the first wedge-like portion 27a and the second wedge-like portion 27b, produce differential, the first wedge-like portion 27a bears high load also in front during the upward movement of backrest 4, the second wedge-like portion 27b bears low load.The efficient of fitting 10 depends on the friction between the first wedge-like portion 27a and the annular outstanding 19 significantly.According to the present invention, in order to reduce these frictions, provide second plain bearing 41, its mode with early-fixed is seated in the first wedge-like portion 27a and goes up also friction ground slip on annular outstanding 19, promptly has function corresponding with first plain bearing 28.
In first exemplary embodiment, second plain bearing 41 is designed to annular section, it is extending less than the first wedge-like portion 27a is inboard, and in second exemplary embodiment, second plain bearing 41 is designed to a ring, and it is close to the wedge-like portion 27 of fully sealing and bearing low load and goes back the position thereon.Because two exemplary embodiments are except respectively from geometric aspects adapts to the shape of second plain bearing 41, identical and element action in the same manner is represented with identical Reference numeral.In the improvement of two exemplary embodiments, second plain bearing 41 on outstanding 19 inboards of annular is arranged in the zone that does not have housing 22, and the wedge-like portion 27a that bears strong load is installed in wherein by extension arm.
Friction between the first wedge-like portion 27a and the described annular outstanding 19 not only influences the self-locking 10 that described efficient also influences the mechanism of fitting 10.So that at least one of two fitting 10 of vehicle seat 1 keeps self-locking no matter be installed in the 27a of first of both sides with sliding type, according to the present invention, with regard to fitting 10, the one out-of-action state actv. drg in fitting 10 is provided, an outer cover spring brake 44 in this case, be arranged in the outer cover spring bushing 46, frictionally be supported on the lining inwall with predetermincd tension by it.Described outer cover spring bushing 46, it is by for example plastics manufacturing, with the mode of rotational fixation by three groups three radially (and/or axially) outstanding outer cover spring bushing arm 48 be arranged on second accessory 12, outer cover spring bushing arm 48 is skew 120 degree angles mutually, and the positive joint with the internal tooth that is formed on described gear 16 rear sides by coining manipulation combines in all cases.
In order to move, outer cover spring brake 44 has radially inwardly outstanding outer cover spring arm 50 at each section.The first wedge-like portion 27a has axially outstanding brake shoe expander 51, and brake shoe expander 51 is arranged in can be along the circumferential direction movable between two outer cover spring arms 50, promptly at identical intra-zone.Brake shoe expander 51 with respect to outer cover spring arm 50 with sealing mode supporting role on outer cover spring brake 44, i.e. actuator cover spring brake 44 and prevent the rotation of described assembly, described assembly is determined the off-centre with respect to second accessory 12.Along with the locking of decentralizing device, first accessory 11 is also fixing with respect to second accessory 12.
Brake action for cancellation outer cover spring brake 44 between the driver stage of actuator 21, at first, end at the drive part 25 of distributing to the first wedge-like portion 27a, the first actuator cam 53 is provided on the actuator 21, secondly, second power cam 55 are provided in described zone, and between the end of drive part 25, described power cam two end axles is to outstanding with about same radial pitch arrangement for it.Outer cover spring arm 50 and brake shoe expander 51 are rotated and are arranged between two actuator cams 53 and 55, that is, the week that actuator cam 53 and 55 is arranged in outer cover spring arm 50 laterally.When actuator 21 was rotated, at first power cam 53 or 55 one began to be supported on the outer cover spring arm 50, and it acts on the outer cover drg 44 in the mode of opening and cancels brake action.Along with the continuation of motion, described decentralizing device drives above-mentioned accessory 11 and 12 mutual rotation.
Reference numerals list:
1 vehicle seat
3 seat parts
4 backrests
5 handwheels
10 fittings
11 first accessories
12 second accessories
16 gears
17 ring gears
19 annulars are outstanding
21 actuators
22 housings
23 holes
25 drive parts
27a first wedge-like portion
27b second wedge-like portion
28 first plain bearings
30 Ω springs
31 set collars
41 second plain bearings
44 outer cover spring brakes
46 outer cover spring bushings
48 outer cover spring bushing arms
50 outer cover spring arms
51 brake shoe expanders
53 first power cam
55 second driving cams

Claims (10)

1. one kind is used for vehicle seat, fitting especially for the power actuated vehicle vehicle seat, has first accessory (11), with first accessory (11) gear bonded assembly second accessory (12), have actuator (21) and wedge-like portion (27a, 27b), it determines a decentralizing device at least in part, described decentralizing device is rotatably installed in the mutual rolling that first accessory (11) and second accessory (12) were gone up and be used to drive to described first accessory (11), also have first plain bearing (28) or antifriction-bearing box, by the described wedge-like portion (27a of described bearing, 27b) have being installed on second accessory (12) than friction, it is characterized in that: (27a, 27b) first (27a) at least has less frictionally being installed on first accessory (11) by second plain bearing (41) or antifriction-bearing box to described two wedge-like portion.
2. fitting as claimed in claim 1 is characterized in that: first wedge-like portion (27a) is that (27a bears than top load in 27b) to described two wedge-like portion during driving described fitting (10).
3. fitting as claimed in claim 1 or 2 is characterized in that: (27a 27b) has less frictionally being installed on first accessory (11) by described plain bearing (41) or corresponding second plain bearing (41) to two wedge-like portion.
4. as the arbitrary described fitting of claim 1 to 3, it is characterized in that: first wedge-like portion (27a) remains on the out-of-action state of described fitting (10) by drg (44), and drg (44) is separated between the driver stage of rolling movement.
5. fitting as claimed in claim 4 is characterized in that: the outer cover spring brake (44) that particularly has two outer cover spring arms (50) is provided to as drg.
6. fitting as claimed in claim 5 is characterized in that: described outer cover spring brake (44) leans against on the outer cover spring bushing (46), and outer cover spring bushing (46) is fixing with respect to second accessory (12) rotation.
7. fitting as claimed in claim 6 is characterized in that: described outer cover spring bushing (46) has a plurality of radially outstanding outer cover spring bushing arms (48), outer cover spring bushing arm (48) and the interior positive connector engages of the internal tooth of second accessory (12).
8. as the arbitrary described joint of claim 5 to 7, it is characterized in that: at least one described wedge-like portion (27a), first wedge-like portion (27a) particularly, has brake shoe expander (51), brake shoe expander leans against on the outer cover spring arm (50), acts on the outer cover spring brake (44) in the osed top mode.
9. as the arbitrary described joint of claim 5 to 8, it is characterized in that described actuator (21) has at least one power cam (53,55), described power cam lean against on the outer cover spring arm (50), act on the described outer cover spring brake (44) in the mode of opening.
10. vehicle seat, power actuated vehicle vehicle seat particularly, have seat part (3) and lean against (4), described leaning against can be connected in described seat part (3) with respect to the gradient adjusted of seat part (3) and at least one side of described vehicle seat (1) by the arbitrary described fitting of claim 1 to 9 (10) at it.
CN2006800228327A 2005-06-22 2006-06-02 Fitting for a vehicle seat Expired - Fee Related CN101208220B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005028779.4 2005-06-22
DE102005028779A DE102005028779B4 (en) 2005-06-22 2005-06-22 Fitting for a vehicle seat
PCT/EP2006/005254 WO2006136274A1 (en) 2005-06-22 2006-06-02 Fitting for a vehicle seat

Publications (2)

Publication Number Publication Date
CN101208220A true CN101208220A (en) 2008-06-25
CN101208220B CN101208220B (en) 2010-09-01

Family

ID=36910867

Family Applications (2)

Application Number Title Priority Date Filing Date
CNA2006800228331A Pending CN101208221A (en) 2005-06-22 2006-06-02 Fitting for a vehicle seat
CN2006800228327A Expired - Fee Related CN101208220B (en) 2005-06-22 2006-06-02 Fitting for a vehicle seat

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CNA2006800228331A Pending CN101208221A (en) 2005-06-22 2006-06-02 Fitting for a vehicle seat

Country Status (9)

Country Link
US (2) US7455361B2 (en)
EP (2) EP1893438B1 (en)
JP (2) JP4970436B2 (en)
KR (2) KR101279425B1 (en)
CN (2) CN101208221A (en)
BR (2) BRPI0612751B1 (en)
DE (3) DE102005028779B4 (en)
PL (2) PL1893437T3 (en)
WO (2) WO2006136274A1 (en)

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WO2012100729A1 (en) * 2011-01-27 2012-08-02 湖北中航精机科技股份有限公司 Seat angle adjuster and self-locking mechanism thereof, and seat with the angle adjuster
CN103359169A (en) * 2012-04-05 2013-10-23 白木工业株式会社 Reclining device
CN103429459A (en) * 2011-05-02 2013-12-04 凯波有限责任两合公司 Fitting system for a vehicle seat
CN104853955A (en) * 2012-12-05 2015-08-19 佛吉亚汽车座椅公司 Hinging assembly for a vehicle seat
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